When I installed my headers I used the gaskets and bolts that was supplied with my kit. Unfortunately didn't have the best of luck the first go around. (had exhaust leak bad gasket, bolts backing out). Look into FRPP gaskets, and maybe some stage 8 locking bolts. Worth the money to not have to go back and redo IMO. Hope this helps.
5-Speed-IUP, Predator tuned, k&n cai,Mrt shifter,Hooker Lts-o/f x-pipe, KC clutch,Alum flywheel,FR 4:10's. Upr rear control arms. Forged Teksid Eaton swap in progress!
WickedStangs Mustang Club
Tulsa,OK Chapter President